The 100 migration batches limit and how to not run into it

As you might or might not know, in Exchange Online we have an upper limit of 100 migration batches. You can see this limit for MaxNumberOfBatches in the Exchange Online PowerShell Get-MigrationConfig: (To understand the MaxConcurrentMigrations limit of 300, you can check this blog post written by one of our migration experts, Brad Hughes.) 100…


Introducing the new migration experience from Google G Suite

Several weeks ago we added a new Microsoft 365 Roadmap item announcing our intent to add ability to migrate Google G Suite calendars and contacts to the ability to migrate mail to Office 365 using our native migration tools.  We’re excited to say that this functionality has started rolling out!  You can expect to see…


Microsoft Hybrid Agent Preview Update

As you are aware, we released the Microsoft Hybrid Agent for Exchange Server as a preview on Feb. 5th, 2019. The blog post for that release is located here. We have been busy working on a few improvements for the Hybrid Agent over that past two months and wanted to let you know of some…


Introduction to Public Folder Hierarchy Sync

Introduction The purpose of this article is to provide high level overview of hierarchy synchronization process in public folders and provide some troubleshooting steps to monitor and troubleshoot hierarchy related issues. The information presented here applies to public folder deployment in Exchange on-premises as well as Exchange Online, with any differences called out. Before we…


Exchange Online – Modern Authentication and Conditional Access Updates

We’re constantly improving the security of Office 365 products and services. Modern Authentication and Conditional Access are two of the best ways of ensuring that your clients can take advantage of authentication features like multi-factor authentication (MFA), third-party SAML identity providers, and are implementing automated access control decisions for accessing your cloud apps based on…


Exchange Team blog is moving to a new home soon!

EHLO! As we hinted in our 15 year blogoversary post, this blog will be moving to a new home soon. Here is what you can expect: Our new home will be Microsoft Tech Community, Blogs section (there will be “Exchange” in the list once all is said and done, with its own unique URL) We…


Announcing the updated Exchange Deployment Assistant site

Today we’re announcing a new site for the Exchange Deployment Assistant – https://assistants.microsoft.com! Like the rest of the Exchange documentation, the Deployment Assistant has lived on TechNet since it was created. With the move towards the docs.microsoft.com platform, we needed to make a similar migration for the Deployment Assistant. With the move to the new…


Investigating TLS usage for SMTP in Exchange Online

Microsoft is committed to enforcing the best security for our services. As a result, TLS1.0, TLS1.1, and 3DES were deprecated in the Office 365 service. While 3DES is currently in the process of being disabled, there is no date set for disabling TLS1.0 and TLS1.1. That said, we are working towards disabling these TLS versions…


New Outlook for iOS and Android App Configuration Policy Experience – General App Configuration

At Microsoft Ignite, Outlook for iOS and Android announced support for deploying managed device general app configuration settings for Office 365 mailboxes and on-premises mailboxes leveraging hybrid modern authentication. This capability leverages either the Managed App Configuration for iOS or the Android managed configurations to enable MDM solutions to push configuration settings. Today, we are…

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